Carton



Oct. 9, 1951- E D 2,570,982

CARTON Filed Nov. 7. 1947 f r j z. l /5 W '/5 A RTHU R REA D INVENTOR.

Patented Oct. 9, 1951 UNITED stares PATENT OFFICE r. Phillips, Piedmont,Calif.

Application"- November 7, 1947, Serial No. 784,594

3: Claims.

This invention relates to improvements; car;- tons. of the type shownand described in my copending application serial Number 'Z"7/l,ll5-,vfiled September 15, 1947, now Patent No. 2,523,688.

It is one. of the principal objects of the present invention: to providea carton. of. the type above referred to but which is reinforced bydouble wall thickness about three of its sides at its upper half wherethe carton is ordinarily gripped by a user during the opening andpouring operations.

A further object is the provision of means formed in the top wall of thecarton formaintaining one wall of the spout in. surface to surfacewiping contact with one wall of the carton throughout its operative:range from: open, to closed positions to prevent leakage between thewall of the spout and the wall. of the carton.

A still further object is the provision. ofv means for locking thepouring spout; in a. closed position against unintentional opening.

Another object is the provision of a carton. of this character which maybe. cut and scored from a single blank of material. and quickly and.con.- veniently folded into final form.

These and other objects will appear as my invention is-more fullyhereinafter described the following specification, illustrated in theaccompanying drawing and finally pointedout in: the appended claims.

In the drawing: 7 I

Figure 1 is a plan View of asheet of blank car-- ton material cut andscored for foldin intoa combination carton and pouring spout, inaccord.- an ce with my invention. Figure 2 is a perspective view oftheiolded carton showing the pouring spout in. an: open position.

Figure 3 is a perspective view taken approximately in the direction ofthe arrow in Figure 2'.

Figure 4 is a fragmentary sectional view of the bottom end of the cartonillustrating an elevated bottom wall.

Referring now more particularly to the drawin Figure 1, referencenumerals I, 2, 3, and 4 indicate four panels constituting the verticalwalls of the carton when folded and are defined by longitudinal foldlines 5 and 6, and transverse fold lines I, 8, and 9'. The top wall ofthe carton is formed by two end flaps H1 and II foldable about the foldline 5. The bottom'wall of the carton is formed by inwardly foldable endflaps I2, [3-, I4, and I5 preferably oi unequal lengths as shown, andscored as at [4A. and ISA.

An auxiliary fiap I6 is formed integral with thepanel l and is foldableat right anglesthereto about a fold line I! for engagement with eitherthe inside or outside marginal edge of the panel 4 when the carton isfolded into final form.

The end flap 10 of the top wall is formed with an integral projection 18foldable about aconti-nuation of the fold line 1. The other top end 2flap II is likewise formed with an extension l9 foldable about the foldline 9 and this extension is formed with an integral projection 20foldable about a fold line 2|. The projection 20 is formed on a greaterradius than that of the wall 23 of the spout. Gne wall 23 of the pouringspout, generally indicated at 24, is formed. integral with the" panel 2and cutout from the corner of the flap H] by perforations IDA as shown.The opposite wall 25 of the spout is foldable, about a continuation ofthe fold line: 8, at right angles to the wall 23 to form. the spout asshown in Figures 2 and 3-. The outermost; corner of the wall 25 isformed with a projection. 26. to serve as a limit stop, for the openingmovement of the spout when the. projection comes up and bears againstthe underside of the flap II when the carton is in completely foldedform. The lowermost edge of the wall 25 of the spout is tapered asindicated at 2'! to correspond with. the tapered edge of the panel 3 toguide thewall 25 of the spout to the inside of the wall 3 of the cartonwhen it is being folded. V

In assembling or folding the carton into final form, I bend the panelsl, 2, 3, and 4 about the fold lines 1; B, and 9 into right angularrelation to each other to form the carton in. box formation; Theauxiliary flap Iii is: then secured. by an adhesive to the marginal edgeof the wall. 4. Following this thebottomend flaps [2,, l3, l4, and I5are folded inwardly about the fold line. 6 then folded over onthemselves between. the fold lines 6,. MA, and LEA to form the elevatedbottomwall illustrated in Figure 4. The folded over portions of. theflaps, and the overlapping flaps may be. secured to each other by theapplication of an, adhesive. The folding thus far moves the panels, [9and ,H into a position directly opposite to the panels Ill and [8.Following thisgthe wall 2.5 of. the spout, is moved about the fold line8, at right angles to, the wall 23 of. the spout, and the wall 25 isthen in position to, be moved. down.- wardly on the interior of. thecarton. against the wall 3.. The: panel I l is thenfolded downwardlywhich places the. extension [9 against the; out,- side of the wall 3 andtheprojeotion 20* against the outside. of the wall 2 with its upp r edgealong the hinge line. 5 of the: pouring spout. The flap l0 is moveddownwardly to overlie the flap II and the extension [8 is folded.against and secured to the outside of the wall I. The flap. II

is formed with a slot. 29 adapted to embracethe wall 25 of the spout andto serve as a guide. in maintaining the wall in close and leakproofwiping contact with the wall 3 throughout the operative range of.movement of the spout. The limit double wall thickness, and also thatportion of another wall 3 directly beneath the hinge line of the spoutand over an area which is normally gripped by a user in the opening and.closing operations of the spout. The reinforcements l9 and 20 alsoprevent any distortion of this corner of the carton which might tend tounseat or disturb the flat surface-to-surface contact of the wall 25 ofthe spout with the wall 3 of the carton, as aforesaid.

As a means of locking the spout in a closed position against accidentalopening, I provide a projection 30 at the central upper corner of thespout for frictional engagement with the inner end of the slot 29.

For manipulating the spout from a closed to an open position, I form aprojection or tab 3| on the wall 23 of the spout. The outer edge of thewall 23 of the spout is defined by the perforated line lflA so that whenthe top end of the carton is folded the spout will remain closed untilready for use.

While I have shown a particular form of embodiment of my invention, I amaware that many minor changes therein will readily suggest themselves toothers skilled in the art without departing from the spirit and scope ofthe invention.

Having thus described the invention what I claim as new and desire toprotect by Letters Patent is:

1. A carton formed from a single sheet of material formed with parallelsets of folding creases extending perpendicularly to each other inintersecting relationship defining a central rectangular portion foldedalong certain of said parallel creases providing four side walls of saidcarton, end flaps along two opposite edges of said portion folded tooverlying relationship providing a top wall and a bottom wall for saidcarton, a

semi-circular tab, afirst half of which is formed out of one of theflaps of said top wall adjacent the juncture between two adjacent sidesof said carton and in continuation of one of said two adjacent sides andthe second half of which is in a plane parallel with the other of saidtwo adjacent sides and is integral with said tab being foldable throughits center along a line in continuation of the folding crease definingthe juncture between said two adjacent side walls to form a pouringspout in which the two halves of said tab are at right angles to eachother with said second half integral with and joined to said first halfonly, one of the flaps forming said top wall being formed with a lateralextension extending over and secured to one of said two adjacent sidewalls adjacent said tab and said extension being formed with aprojection extending over the other of said two adjacent sides adjacentsaid tab and secured thereto whereby 'said two adjacent sides arereinforced adjacent said tab by said extension and said projection.

2. A carton formed from a single sheet of material formed with parallelsets of folding creases extending perpendicularly to each other in intersecting relationship defining a central rectangular portion foldedalong certain of said parallel creases providing four side walls of saidcarton, end flaps along two opposite edges of said portion folded tooverlying relationship providing a top wall and a bottom wall for saidcarton, a semi-circular tab, a first half of which is formed out of oneof the flaps of said top wall adjacent the juncture between two adjacentsides of said carton and in continuation of one of said two adjacentsides and the second half of which is in a plane parallel with the otherof said two adjacent sides and is integral with said tab being foldablethrough its center along a line in continuation of the folding creasedefining the juncture between said two adjacent side walls to form apouring spout in which the two halves of said tab are at right angles toeach other with said second half integral with and joined to said firsthalf only, one of the flaps forming said top wall being formed with alateral extension extending over and secured to one of said two adjacentside walls adjacent said tab and said extension being formed with aprojection extending over the other of said two adjacent sides adjacentsaid tab and secured thereto whereby said two adjacent sides arereinforced adjacent said tab by said extension and said projection,another of the flaps forming said top wall being formed with a lateralextension extending over and secured to the side of said carton oppositethe side over which said first mentioned extension extends. whereby thetwo sides of said carton normally gripped by the user in pouring thecontents of the carton through said spout are reinforced along said topwall.

3. A carton formed from a sheet of material formed with parallel sets offolding creases extending perpendicularl to each other in intersectingrelationship defining a central rectangular portion folded along certainof said parallel creases providing four side walls of said carton, apair of end fiaps along one of the edges of said portion folded tooverlying relationshipproviding a top wall'for said carton, asemi-circular tab having a first half and a second half integraltherewith folded to a position at right angles to each other alongcrease line in extension of one of the creases defining the juncturebetween two adjacent side walls of said carton with said first half andsaid second half in planes respectively parallel with the walls of saidtwo adjacent side walls to provide a pouring spout, said first halfbeing integral with one of said two adjacent side walls and said secondhalf being free from securement to the other of said two adjacent sidewalls for swinging of said halves into and out of said carton from andto a pouring position. said first half being cut out from one of saidpair of fiaps, the flaps of said pair being integral with two of theopposite side walls of said carton, a lateral extension integral witheach of said two flaps overlying and secured to the other two side wallsof 'said carton along the said top wall with one of said other two sidewalls being one of said two adjacent side walls, and said extensionhaving a portion extending to the juncture between said two adjacentside walls.

ARTHUR READ.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,119,208 Weiss Dec. 1, 19141,954,576 Read Apr. 10, 1934 1,970,918 Rosenberg Aug. 21, 1934 2,028,687Read Jan. 21, 1936 2,095,720 Spalding Oct. 12, 1937 2,362,942 SpaldingNov. 14, 1944 FOREIGN PATENTS Number Country Date 438,299 Great BritainNov. 14, 1935

